Golang MVCCDeleteRange示例

示例#1

文件： range_command.go 项目： routhcr/cockroach

// DeleteRange deletes the range of key/value pairs specified by
// start and end keys.
func (r *Range) DeleteRange(batch engine.Engine, ms *engine.MVCCStats, args proto.DeleteRangeRequest) (proto.DeleteRangeResponse, error) {
	var reply proto.DeleteRangeResponse

	numDel, err := engine.MVCCDeleteRange(batch, ms, args.Key, args.EndKey, args.MaxEntriesToDelete, args.Timestamp, args.Txn)
	reply.NumDeleted = numDel
	return reply, err
}

示例#2

文件： sequence_cache.go 项目： bogdanbatog/cockroach

// Del removes all sequence cache entries for the given transaction.
func (sc *SequenceCache) Del(e engine.Engine, ms *engine.MVCCStats, txnID *uuid.UUID) error {
	startKey := keys.SequenceCacheKeyPrefix(sc.rangeID, txnID)
	_, err := engine.MVCCDeleteRange(e, ms, startKey, startKey.PrefixEnd(), 0 /* max */, roachpb.ZeroTimestamp, nil /* txn */, false /*returnKeys*/)
	return err
}

示例#3

文件： range_command.go 项目： simonzhangsm/cockroach

// DeleteRange deletes the range of key/value pairs specified by
// start and end keys.
func (r *Range) DeleteRange(batch engine.Engine, ms *engine.MVCCStats, args *proto.DeleteRangeRequest, reply *proto.DeleteRangeResponse) {
	num, err := engine.MVCCDeleteRange(batch, ms, args.Key, args.EndKey, args.MaxEntriesToDelete, args.Timestamp, args.Txn)
	reply.NumDeleted = num
	reply.SetGoError(err)
}